烟雾传感器原理图，pdf，设和初学者作为参考啦，学习要循序渐进么-Smoke sensor schematic, pdf, design, and friends as a reference for beginners to learn to step Mody

附件利用holtek MCU HT45F23A开发语音型烟雾侦测器的原始代码，可完成烟雾火灾的报警和语音播放。附件包含对应电路图，提供给大家参考-Accessory use holtek MCU HT45F23A development of voice-type smoke detectors in the source code, to be completed by the smoke of fire alarm and voice playback. Annex contains the